sql conn
Always use Prepared Statements
Watch out for SQL injections!!!sql conn
Always use Prepared Statements
Watch out for SQL injections!!!sql constarint
It creates a new constraint on an existing table, which is used to specify
rules for any data in the table.
Example: Adds a new PRIMARY KEY constraint named ‘user’ on columns
ID and SURNAME.
ALTER TABLE users
ADD CONSTRAINT user PRIMARY KEY (ID, SURNAME);Copyright © 2021 Codeinu
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